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Reference Guide
SQL Reference
FAQ
Deletes a YMatrix database instance and its data.
Functionality
The mxdeletesystem utility stops the postgres processes on all Segment instances and the Master instance, then removes all data directories. This returns the system to its pre-database deployment state.
Prerequisites
Warning!
mxdeletesystemdeletes only the database instance and data. It does not remove the operating system usermxadmin, nor does it uninstall the YMatrix software.
| Option | Description |
|---|---|
| -c or --db-cluster-id |
Specifies the target database cluster ID. Uses the default ID if omitted. |
| -a or --no-prompt | Skips the confirmation prompt before deletion. By default, the user is prompted for confirmation. |
| -t or --timeout | Sets the command timeout duration. Default is 1 minute. |
| -q or --quiet | Runs in quiet mode. Output is suppressed on screen but still written to log files. |
| -h or --help | Displays help information. |
Delete a database cluster. The tool prints cluster information and prompts for confirmation before proceeding.
Warning!
mxdeletesystemmust be run as a user with sudo privileges on the Master host (other thanmxadmin) using the full path/opt/ymatrix/matrixdb5/bin/mxdeletesystem.
$ mxdeletesystemDelete a database cluster without confirmation.
$ mxdeletesystem -aNote!
YMatrix 5 introduces a new database architecture. Usemxdetetesystemto delete clusters. It is not compatible withgpdeletesystem. For earlier versions, usegpdeletesystem.